Monolithic Chalcogenide Optical Nanocomposites Enable Infrared System Innovation: Gradient Refractive Index Optics
Sign Up to like & getrecommendations! Published in 2020 at "Advanced Optical Materials"
DOI: 10.1002/adom.202000150
Abstract: The size and weight of conventional imaging systems is defined by costly non‐planar lenses and the complex lens assemblies required to minimize optical aberrations. The ability to engineer gradient refractive index (GRIN) optics has the… read more here.
Keywords: optics; refractive index; gradient refractive; monolithic chalcogenide ... See more keywords
Cell compaction is not required for the development of gradient refractive index profiles in the embryonic chick lens.
Sign Up to like & getrecommendations! Published in 2020 at "Experimental eye research"
DOI: 10.1016/j.exer.2020.108112
Abstract: The development of the eye requires the co-ordinated integration of optical and neural elements to create a system with requisite optics for the given animal. The eye lens has a lamellar structure with gradually varying… read more here.
Keywords: gradient refractive; grin; eye; development ... See more keywords
A bend-resistant low bending loss and large mode area two-layer core single-mode fiber with gradient refractive index ring and multi-trench
Sign Up to like & getrecommendations! Published in 2018 at "Optical Fiber Technology"
DOI: 10.1016/j.yofte.2018.07.010
Abstract: Abstract We propose a bend-resistant large mode area single-mode fiber with low bending loss. The fiber consists of three parts, including a two-layer core, a gradient refractive index ring and multi-trench. Performance of the proposed… read more here.
Keywords: mode; index ring; fiber; gradient refractive ... See more keywords
A Review of 3D Printed Gradient Refractive Index Lens Antennas
Sign Up to like & getrecommendations! Published in 2023 at "IEEE Access"
DOI: 10.1109/access.2023.3239782
Abstract: Gradient index lens antennas find their application in modern wireless communication including radar systems, satellite communication, etc. They can ensure highly directional beamforming, support multibeam operations and beam steering capabilities within a wide angle of… read more here.
Keywords: index; gradient refractive; index lens; refractive index ... See more keywords
Sharp bend in two-dimensional optical waveguide based on gradient refractive index structure.
Sign Up to like & getrecommendations! Published in 2017 at "Applied optics"
DOI: 10.1364/ao.56.005336
Abstract: In this work, we propose the design of a sharp bend in a two-dimensional optical waveguide which has super-ellipse curve boundaries and a gradient refractive index structure in its core. Numerical simulations are presented to… read more here.
Keywords: sharp bend; dimensional optical; two dimensional; optical waveguide ... See more keywords
Development and characteristics of infrared gradient refractive index chalcogenide glasses by hot pressing.
Sign Up to like & getrecommendations! Published in 2022 at "Optics express"
DOI: 10.1364/oe.462274
Abstract: Compared with ordinary uniform lenses, the length and refractive index distribution of gradient refractive index (GRIN) lenses can effectively correct aberration and chromatic aberration. This advantage makes the miniaturization, integration, and lens lightweight possible. Although… read more here.
Keywords: chalcogenide glasses; index; gradient refractive; hot pressing ... See more keywords
Visible transparent mid-infrared broadband absorbers based on gradient refractive indexes and multi-size cavity resonances.
Sign Up to like & getrecommendations! Published in 2022 at "Optics express"
DOI: 10.1364/oe.473986
Abstract: We proposed a multi-layered nanorod structure with the same tilt angle and different diameters, which has high visible transmittance and strong 3-5 µm absorption based on the principles of the gradient of the refractive index… read more here.
Keywords: size cavity; multi size; cavity resonances; gradient refractive ... See more keywords
Refractive index measurement deflectometry for measuring gradient refractive index lens.
Sign Up to like & getrecommendations! Published in 2024 at "Optics express"
DOI: 10.1364/oe.518670
Abstract: A method based on deflectometry to measure the refractive index distribution of radial gradient refractive index (GRIN) lens is proposed in this paper. The method establishes the relationship between the refractive index distribution and the… read more here.
Keywords: method; deflectometry; gradient refractive; measurement ... See more keywords
Shortcuts to Adiabaticity for Optical Beam Propagation in Nonlinear Gradient Refractive-Index Media
Sign Up to like & getrecommendations! Published in 2020 at "Entropy"
DOI: 10.3390/e22060673
Abstract: In recent years, the concept of “shortcuts to adiabaticity" has been originally proposed to speed up sufficiently slow adiabatic process in various quantum systems without final excitation. Based on the analogy between classical optics and… read more here.
Keywords: beam; shortcuts adiabaticity; gradient refractive; refractive index ... See more keywords
Plasma-Etched Black GaAs Nanoarrays with Gradient Refractive Index Profile for Broadband, Omnidirectional, and Polarization-Independent Antireflection
Sign Up to like & getrecommendations! Published in 2024 at "Nanomaterials"
DOI: 10.3390/nano14131154
Abstract: Black GaAs nanotip arrays (NTs) with 3300 nm lengths were fabricated via self-masked plasma etching. We show, both experimentally and numerically, that these NTs, with three gradient refractive index layers, effectively suppress Fresnel reflections at… read more here.
Keywords: polarization independent; black gaas; gradient refractive; gaas ... See more keywords